find the resultant displacement of a bear searching for berries on the mountain. the bear heads 55.0° north of west for
15.0 m; then it turns and heads to the west for another 7.00 m. (use trigonometry to answer, but remember to draw a
diagram to your understanding) give both the magnitude and the angle in your answer.

Sally turns on her cellular telephone to speak to her friend who is located thousands of miles away. which of the following best describes how such a telephone is able to transmit and receive information? a. the cellular telephone transmits, receives, and encodes information using only sound waves. b. the cellular telephone transmits, receives, and encodes information using only electromagnetic waves. c. the cellular telephone transmits information by electromagnetic waves to a receiver which then encodes them and produces sound. d. the cellular telephone transmits information by sound waves to a receiver which then encodes them and produces electromagnetic waves.